Global Warming

Poll

What do you think global warming is caused by?

• nature

• human activity

• both

Multiple Choice

Global Warming is MAINLY caused by...

• ...the Sun

• ...the Greenhouse Effect.

Multiple Choice

Global warming is the term used to describe the RISING of the average temperature on Earth.

• True

• False

Multiple Choice

Compared to other greenhouse gases, ___________ is the most effective at trapping heat near the Earth's surface.

• A. Carbon dioxide

• B. Nitrogen

• C. Water vapor

• D. Methane

Multiple Choice

Which of the following gases does not trap heat?

• A. Carbon dioxide

• B. Nitrogen

• C. Water vapor

• D. Methane

Multiple Choice

Some kinds of pollution in the atmosphere can act to cool the planet by reducing the amount of solar radiation that reaches Earth's surface.

• reducing the amount of solar radiation

• increasing the amount of solar radiation

• reducing the amount of carbon dioxide

• increasing the amount of carbon dioxide

Multiple Choice

How do scientists collect evidence about climate?

• A. Using remote sensing from space with satellites

• B. By ground-based measurements of surface temperature, carbon dioxide concentration and sea level

• C. By collecting "proxy data" from tree rings, ice cores and historical records

• D. All of the above

Multiple Choice

Global warming has negative effects on plants, animals and human beings.

• True

• False

Multiple Choice

The Greenhouse Effect happens when the HEAT cannot escape the Earth.

• True

• False

Multiple Choice

Due to a DECREASE in the number of trees and forests, the Carbon Dioxide (CO2) remains in the atmosphere :(

• True

• False

Multiple Choice

The Greenhouse Effect happens because people cause pollution, and, therefore, Carbon Dioxide.

• True

• False

Multiple Choice

Recycling, saving energy and using bicycles instead of cars can help reduce Global Warming.

• True

• False

Multiple Choice

Trees help the Earth because...

• ...they absorb huge amounts of Carbon Dioxide (CO2) from the air and release oxygen back into it.

• ...they absorb huge amounts of oxygen from the air and release Carbon Dioxide (CO2) back into it.

Multiple Choice

Deforestation is another cause of global warming.

• True

• False